Adjustable ring book



Nov. 27, 1934. ADAMS 1,982,409

ADJUSTABLE RING BOOK Filed Dec. 14, 1932 Patented Nov. 27, 1934 v UNITED STATES PATE OFFICE ADJUSTABLE RING BOOK Henry T. Adams, Chicago, Ill. Application December 14, 1932, Serial No. 647,262 6 Claims. (01. 129--24) This invention relates to adjustable ring books, is provided with a plate member 7, which is or holders, and the like. equipped with rearwardly extending lugs or heels One of the objects of the invention is to pro- 8 adapted to engage the inturned edges 2 or" the vide a loose-leaf ring mechanism of cheap and back strip 1. Plate member 7 is shown provided simple construction which enables perforated at its front end with hinge 9, which preferably sheets to be readily inserted upon the rings and comprises alternate downturned curved lugs 9 withdrawn therefrom; and a ring mechanism in and upturned lugs or half-rings 9 The hinged which the ring members may be readily removed ring members are so constructed that when two from or secured on the binding strip. Another complemental rings are placed together, the

in object is to provide means for operating the rings curved lugs meet to form one continuous cylindri- 65; of the binder simultaneously, and means which cal hinge through which rod 5 may be inserted to will at the same time enable the rings to be adsecure the two members in operative relation. justed longitudinally of the binder strip. Other Any desirednumber of similar rings may be objects and advantages will appear as the speciplaced upon the rod 5 inthis manner. With the fication proceeds. ring members in open position, the rod is lowered 7.0

The invention is fully described in the followinto slot or recess 4, the backwardly extending ing specification, and shown in the accompanyheels 8 of plate '7 being inserted beneath the ining drawing, in which: turned edges 2. Figure l is an end view of a loose-leaf book Pressure upon rod 5, or the ends of rod 5, forces equipped with binder mechanism embodying my the plate members 7 downwardly until the ring 75 invention; members 6 assume the closedposition, shown in Fig. 2 is a sectional view of the binder mecha- Fig. 2. In this position, the plate 'members "7 nism, removed from the book, the section being slant downwardly from the heels '8- towards thetaken as indicated at line 2 of Fig. 8; hinge portions 9, and thus anchor the ring mem- Fig. 3, a similar sectional view, the ring members rigidly against the inturned edges 2. The so here being shown in open position; i inturned edges or walls 2 serve as a spring to hold Fig. 4, a detail perspective view of one of the the plate member in the downwardly inclined. ring members; position. i

Fig. 5, a sectional View, the section being taken When rod 5 is raised, thus springing back the as indicated at line 5, of Fig. 3; edges 2, the hinges 9 permit the plates 7 to assume i Fig. 6, a perspective view of the cover or spacer the upwardly inclined position, shown in Fig. 3, member employed in connection with the binder and the ring members 6 are opened. The spring mechanism; tension of the inturned edges 2, although less in Fig. '7, a perspective view of the metal back strip this position, serves to hold the plates '7 in up-- to which the ring membersmay be secured; and wardly inclined position, and thereby holds com.- Fig. 8, a plan view of the ring members, showing plemental ring members 6 open. the tips of the rings in engagement. It will be observed that when the ring members In the illustration given, the book cover A is 6 are in closed position, the plate members '7 are shown provided at its rear side with a metal back almost at right angles to the side walls or inturned to strip 1, which may be secured thereto by any edges 2 of the plate 1, and therefore the plates at 95, suitable means, such as rivets. this point exert pressure against edges 2. On the The back strip 1 may be formed of a single other hand, when the complemental ring mempiece of sheet metal. The sides of back strip 1 bers 6 are in open position, the plate members 7 are preferably turned inwardly to form spring incline slightly upwardly so that very little presto walls or edges 2; and at its ends, the back strip sure is exerted against the side walls or edges 2.

is preferably provided with upwardly struck sup- When in open position, therefore, the ring memports 3, which are provided with a guide slot or bers 6 may be adjusted longitudinally of the rod recess 4. The recesses 4., at the ends of the back 5 with ease. strip are adapted to receive the ends of a rod 5, If desired, a spacer cover or retaining member 50; which is secured against lateral displacement by 10 may be employed. Preferably this consists of the side walls of recesses a convex strip of material having lugs 11 at both A pair of complemental ring members or secof its ends which engage the inturned edges 2 of tions 6 are suitably connected to the rod 5 so as the back strip 1 so as to secure cover 10 thereto. to form, when in closed position, one continuous Cover 10 may be provided-at an intermediate 55; ring. Each of the complemental ring members 6 point with lugs 12 which are centrally recessed to 1 19 receive a pair of complemental rings 6. With this type of cover, a pair of ring members may be retained by means of recessed lugs or guides 12 in a fixed position with respect to the cover 10 or back strip 1, while the remaining ring members may be adjusted along the spaces between lugs 12 and lugs 11. If desired, any number of spacing lugs 12 may be employed. Any suitable means, such as a threaded cap 13, engaging a threaded end of the rod 5 may be employed to secure rod 5 against longitudinal displacement.

The side walls of ring members 6 are preferably curved rearwardly so as to form members substantially semi-circular in cross section. Rings of this shape conform on the inner side to the shape of the holes in the sheets of paper.

It will be observed that with the ring construction illustrated, the entire mechanism is readily separable, the complemental ring members 6 being removable from rod 5 and the rings also being readily removable from back plate 1. The desired number of rings may be quickly placed upon rod 5 and adjusted to a position which will enable them to receive previously perforated parts of paper. In case of injury to one of the complemental ring members, the defective part may be removed and replaced with a new part. The mechanism is simple, sturdy and may be constructed at very. little cost.

As shown more clearly in Fig. 8, the tips of the rings each have a saw-tooth shape which permits the rings to be used interchangeably on opposite sides of the pivot rod 5.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art. A

I claim:

1. In a ring book, a metal back strip provided with spring side walls having inturned edges which are uniformly straight throughout their length, separable ring sections shiftable longitudinally of said back strip, each of said ring sections having a curved portion and angularly disposed heels extending from said curved portion and engaging a side wall so as to support said curved portion away from said inturned edge, and a cover member having lateral extensions received under the inturned edges of said side walls, said lateral extensions being spaced apart longitudinally so as to provide longitudinal slots between said edges and said cover through which said ring sections may be shifted.

2. In a ring book, a metal back strip provided with spring side walls having inturned edges, at

least one pair of complemental and interchangeable ring sections shiftable longitudinally of said back strip and equipped with interlocking hinge elements, a pivot rod engaging said hinge elements, each of the ring sections having a curved portion and an angularly disposed projection extending from said curved portion and engaging a side wall of the back strip so as to support said curved portion away from its corresponding inturned edge, and a cover member having lateral extensions received under the inturned edges of the side walls, said lateral extensions being spaced apart and affording longitudinal slots between said edges and said cover through which said ring sections may be shifted.

3. In a ring book, a metal back strip provided withspring side walls having inturned edges, a pair of ring sections slidably secured to said back strip, and a cover member having lateral extensions received under the inturned edges of said side walls, said lateral extensions being spaced apart and affording longitudinal slots between said edges and said cover through which said ring sections may be shifted.

4. In a ring book, a metal back strip provided with spring side walls having inturned edges, a plurality of pairs of ring sections slidably secured to said back strip, and a cover member having lateral extensions received under the inturned edges of said side walls, some of said lateral extensions being spaced apart and affording longitudinal slots between said edges and said cover through which some of said ring sections may be shifted, and at least two of said lateral extensions being spaced close together so as to engage at least one of said ring sections to prevent the shifting thereof.

5. In a ring book, a metal back strip provided with spring side walls, a pair of ring sections slidably engaging said side walls and shiftable longitudinally of said back strip, and a cover member having lateral edge portions interlocked with said spring side walls, said cover member having portions cut away and aifording longitudinal slots adjacent said spring side walls through which said ring sections may be shifted.

6. In a ring book, a metal back strip provided with spring side walls, at least one pair of ring sections slidably engaging said side walls and shiftable longitudinally of said back strip, and. a

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